Jet Propulsion Laboratory
California Institute of Technology
The GRACE-FO satellites are nearly identical. The Microwave Interferometer (MWI) will measure the minute variations in distance between the spacecraft.
Measuring Earth's Gravity from Space poster
Measuring Earth's Gravity from Space Poster
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 3).
GRACE-FO Satellites in Testing
The twin GRACE-FO satellites will pick up where the GRACE mission (2002-2017) left off, studying our changing planet.
GRACE Follow-On Media Reel
Illustration of GRACE-FO in orbit (view 2).
GRACE-FO in Orbit (View 2)
This image shows the mean annual amplitude of total water storage on Earth in 2007 as measured by GRACE.
Total Water Storage from GRACE, 2007
The signal of the December 2004 earthquake in the Indian Ocean in GRACE observations of Earth's gravity field.
GRACE Sees Earthquake in Indian Ocean
The rainy and dry seasons in the Amazon Basin in 2004, revealed by gravity anomalies observed by GRACE. Reds and pinks show where and when mass was higher than average, a sign that more water was p...
Rainy and Dry Seasons in the Amazon (2004)
Changes in total water storage on Earth in 2007, as measured by GRACE.
Water Storage on Earth in 2007
Flames from the SpaceX Falcon 9 rocket launching GRACE-FO into orbit.
Variations in water storage in the Tigris and Euphrates river basins from 2003 to 2009, measured by GRACE. Reds represent drier conditions, while blues represent wetter conditions. The majority of ...
Tigris and Euphrates Water Storage, 2003 to 2009
A map of groundwater storage trends for Earth's 37 largest aquifers using GRACE data, showing depletion and replenishment in millimeters of water per year.
Map of Groundwater Storage Trends for Earth's 37 Largest Aquifers
For 15 years, the GRACE mission has unlocked mysteries of how water moves around our planet. It gave us the first view of underground aquifers from space, and shows how fast polar ice sheets and mo...
15 Years of GRACE Earth Observations
GRACE Flight Trajectory
GRACE Flight Trajectory
The GRACE-FO satellites, attached to turntable fixtures, at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California (view 1).
GRACE-FO Satellites, Attached to Turntable Fixtures
Depletion of groundwater in northwestern India between 2002 and 2008, measured by GRACE.
Groundwater Depletion in India, 2002-2008
The SpaceX Falcon 9 rocket is seen with the NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft onboard at Space Launch Complex 4E at Vandenberg Air Force Base in California.
GRACE-FO in Falcon 9 on Launchpad
Gravity anomaly map using GRACE data.
Gravity Anomaly Map Using GRACE Data
GRACE-Follow On (GRACE-FO) is a satellite mission scheduled for launch in May 2018. GRACE-FO will continue the work of the GRACE satellite mission tracking Earth's water movement around the globe. ...
Tracking Water from Space
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 1).
GRACE-FO Satellites During Testing
Illustration of GRACE-FO above Alaska.
Illustration of GRACE-FO Above Alaska
A simplified example of how the distance between the GRACE-FO satellites changes as they pass from the Caribbean Sea across Colombia and Peru.
How GRACE-FO Measures Gravity
GRACE-FO in a protective shipping container arriving at a new facility at Vandenberg Air Force Base, California.
GRACE-FO Arrives at Vandenberg
Illustration of GRACE-FO in orbit (view 4)
Illustration of GRACE-FO (View 4)
Many of today’s most pressing climate science challenges hinge on knowing how and where water is moving on Earth. GRACE-FO will continue the successful partnership between NASA and the German Resea...
GRACE-FO Launch Press Kit
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